1
Henry R Halperin, Ronald D Berger, Ergin Atalar, Elliot R McVeigh, Albert Lardo, Hugh Calkins, Joao Lima: Magnetic-resonance-guided imaging, electrophysiology, and ablation. Johns Hopkins University School of Medicine, Foley Hoag, March 2, 2004: US06701176 (232 worldwide citation)

A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic res ...


2
Henry R Halperin, Robert A Stevenson: Band stop filter employing a capacitor and an inductor tank circuit to enhance MRI compatibility of active implantable medical devices. Greatbatch, Kelly Lowry & Kelley, April 22, 2008: US07363090 (208 worldwide citation)

A band stop filter is provided for a lead wire of an active implantable medical device (AIMD). The band stop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the implantable lead wire of the AIMD, wherein values of capacitance an ...


3
Henry R Halperin, Ronald D Berger: CPR chest compression monitor. The Johns Hopkins University, K David Crockett Esq, Crockett & Crockett, May 21, 2002: US06390996 (178 worldwide citation)

Chest compressions are measured and prompted to facilitate the effective administration of CPR. A displacement detector produces a displacement indicative signal indicative of the displacement of the CPR recipient's chest toward the recipient's spine. A signaling mechanism provides chest c ...


4
Henry R Halperin, Ronald D Berger, Ergin Atalar, Elliot R McVeigh, Albert Lardo, Hugh Calkins, Joao Lima: System and method for magnetic-resonance-guided electrophysiologic and ablation procedures. Johns Hopkins University School of Medicine, Nixon & Vanderhye P C, December 26, 2006: US07155271 (152 worldwide citation)

A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic res ...


5
Albert C Lardo, Xiaoming Yang, Ergin Atalar, Parag Karmarkar, Elliott R McVeigh, Henry R Halperin, Christine Enger McNamara, Paul A Bottomley: Magnetic resonance imaging guidewire probe. Johns Hopkins University School of Medicine, Surgi Vision, Foley Hoag, January 6, 2004: US06675033 (151 worldwide citation)

The invention describes a system, method, and means for an MRI guidewire that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter, and can allow the use of multiple interventional tools without removal of the guidewire from a subject.


6
Albert C Lardo, Elliott R McVeigh, Henry R Halperin: Magnetic resonance imaging transseptal needle antenna. Surgi Vision, Foley Hoag, August 12, 2003: US06606513 (151 worldwide citation)

The invention describes a system, method, and means for an MRI transseptal needle that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter to generate high-resolution images and can enable real-time active needle tracking during MRI guided transsep ...


7
James Adam Palazzolo, Ronald D Berger, Henry R Halperin, Darren R Sherman: Method of determining depth of compressions during cardio-pulmonary resuscitation. Revivant Corporation, K David Crockett Esq, Theodore D Fay III Esq, Crockett & Crockett, December 7, 2004: US06827695 (122 worldwide citation)

A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points esti ...


8
Henry R Halperin, Ronald D Berger, Ergin Atalar, Elliot R McVeigh, Albert Lardo, Hugh Calkins, Joao Lima: MRI-guided therapy methods and related systems. Surgi Vision, Frommer Lawrence & Haug, Bruce E Black, October 26, 2010: US07822460 (95 worldwide citation)

A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic res ...


9
Robert C Susil, Gwyneth Susil, Ergin Atalar, Albert C Lardo, Henry R Halperin, Ronald D Berger, Hugh Calkins, Paul Bottomley: Systems and methods for magnetic-resonance-guided interventional procedures. November 30, 2010: US07844319 (67 worldwide citation)

Herein is disclosed a probe, including a first electrode disposed at least partially on the probe surface, a second electrode disposed at least partially on the probe surface, a first conductor electrically coupled to the first electrode, a second conductor electrically coupled to the second electro ...


10
Robert A Stevenson, Warren S Dabney, Christine A Frysz, Buehl E Truex, Henry R Halperin, Albert C Lardo: Frequency selective passive component networks for implantable leads of active implantable medical devices utilizing an energy dissipating surface. Greatbatch, Kelly Lowry & Kelley, March 30, 2010: US07689288 (56 worldwide citation)

Decoupling circuits are provided which transfer energy induced from an MRI pulsed RF field to an energy dissipating surface. This is accomplished through broadband filtering or by resonant filtering. In a passive component network for an implantable leadwire of an active implantable medical device, ...